| geography | Origin: F. Geographie, l. Geographia, fr. Gr., the earth + description, fr. To write, describe. See Graphic. 1. <study> The science which treats of the world and its inhabitants; a description of the earth, or a portion of the earth, including its structure, fetures, products, political divisions, and the people by whom it is inhabited. 2. A treatise on this science. Astronomical, or Mathematical, geography treats of the earth as a planet, of its shape, its size, its lines of latitude and longitude, its zones, and the phenomena due to to the earth's diurnal and annual motions. Physical geography treats of the conformation of the earth's surface, of the distribution of land and water, of minerals, plants, animals, etc, and applies the principles of physics to the explanation of the diversities of climate, productions, etc. Political geography treats of the different countries into which earth is divided with regard to political and social and institutions and conditions. Source: Websters Dictionary (01 Mar 1998) |
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| health care economics and organizations | The economic aspects of health care, its planning, and delivery. It includes government agencies and organizations in the private sector. (12 Dec 1998) |
| economics | 1. <study> The science of household affairs, or of domestic management. 2. Political economy; the science of the utilities or the useful application of wealth or material resources. See Political economy, under Political. "In politics and economics." Origin: Gr, equiv. To. (10 Nov 1998) |
| economics, dental | Economic aspects of the dental profession and dental care. (12 Dec 1998) |
| economics, hospital | Economic aspects related to the management and operation of a hospital. (12 Dec 1998) |
| economics, medical | Economic aspects of the field of medicine, the medical profession, and health care. It includes the economic and financial impact of disease in general on the patient, the physician, society, or government. (12 Dec 1998) |
| economics, nursing | Economic aspects of the nursing profession. (12 Dec 1998) |
| economics, pharmaceutical | Economic aspects of the fields of pharmacy and pharmacology as they apply to the development and study of medical economics in rational drug therapy and the impact of pharmaceuticals on the cost of medical care. Pharmaceutical economics also includes the economic considerations of the pharmaceutical care delivery system and in drug prescribing, particularly of cost-benefit values. (12 Dec 1998) |
| abstracting and indexing | Shortening or summarizing of documents; assigning of descriptors for referencing documents. (12 Dec 1998) |
| academies and institutes | Organizations representing specialised fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., national academy of sciences, brookings institution, etc. (12 Dec 1998) |
| accounts payable and receivable | Short-term debt obligations and assets occurring in the regular course of operational transactions. (12 Dec 1998) |
| aged, 80 and over | A person 80 years of age and older. (12 Dec 1998) |
| algae and fungi | Algae represent a group of spore-propagating plants, unicellular or undifferentiated into root, stem, and leaf. They include seaweed and many unicellular fresh water plants, most of which contain chlorophyll. They account for about 90% of the earth's photosynthetic activity. Fungi are eukaryotic, heterotrophic organisms that live as saprobes or parasites and include mushrooms, yeasts, smuts, molds, etc. They lack chlorophyll. (12 Dec 1998) |
| alkyl and aryl transferases | <enzyme> A somewhat heterogeneous class of enzymes that catalyze the transfer of alkyl or related groups (excluding methyl groups). Registry number: EC 2.5 (12 Dec 1998) |
| allergy and immunology | A medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder. (12 Dec 1998) |